Sorting a "locked" column in a CListCtrl 1

[solla]

Is it possible to click on a column header AND fix the width of the column at the same time?

Basically, in order to fix the size of the column, I have done something like,

my_list_control.GetHeaderCtrl()->EnableWindow(FALSE);

However, this means that I can no longer click on the column header in order to sort the items.

Any solutions?

 

[NiceButDim]

Yes,

Don't disable the column headers.
Instead create your own version of CListCtrl (i.e. insert a new class into your project with a base class of CListCtrl). Point your existing list to this new class instead of CListCtrl. Then within your new class override 'PreTranslateMessage' and alter it to;

BOOL CTest:reTranslateMessage(MSG* pMsg)
{
if(pMsg->message==512)
return TRUE;
return CListCtrl:reTranslateMessage(pMsg);
}

This will prevent the list's columns from being resized.

 

[solla]

Thanks very much - that works a treat.

However, which message does 512 correspond to?

 

[NiceButDim]

Don't know!
Just trapped it in a TRACE statement.

 

[solla]

Nice work anyway!!!

 

[solla]

For reference, the message that corresponds to the magic number is WM_MOUSEMOVE

 

[solla]

This solution works fine when the user wants to drag the column separator. However, they can still double click on the column separator to achieve their goal!

I haven't yet got a solution for this, although I'm sure its just a case of trapping a different message!

 

[NiceButDim]

Good point.
The message for the double click is 515 (WM_LBUTTONDBLCLK).